. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Figure 11. Type of Echinerpefon intermedium, MCZ 4090. A, partial skeleton; B, other skeletal elements belonging to the type specimen, dorsol and ventral view of femur, humerus, and tv/o proximal caudal vertebrae; C, partial reconstruc- tion. X 1- Abbreviations used in the figure: a, astragalus; ax, axis neural arch; d, dentary; f, femur; fi, fibula; h, humerus; ic, interciavicie; il, ilium; na, neural arch; ns, neural spines; p, pleurocentrum; pt, pterygoid; sc, scapula; ti, tibia. Genus Echinerpefon n. gen. Type spe
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Figure 11. Type of Echinerpefon intermedium, MCZ 4090. A, partial skeleton; B, other skeletal elements belonging to the type specimen, dorsol and ventral view of femur, humerus, and tv/o proximal caudal vertebrae; C, partial reconstruc- tion. X 1- Abbreviations used in the figure: a, astragalus; ax, axis neural arch; d, dentary; f, femur; fi, fibula; h, humerus; ic, interciavicie; il, ilium; na, neural arch; ns, neural spines; p, pleurocentrum; pt, pterygoid; sc, scapula; ti, tibia. Genus Echinerpefon n. gen. Type species. Ecliincrpeton intermedium new species. Known distribution. Middle Pennsylva- nian of eastern North America. Diagnosis. Very small ophiacodont pel- ycosaur, with \eiy high neural spines. Ratio between height and width of mid-dorsal neural spine—7:1. Primitive axis \ertebra. Neural arches not swollen, \^>bbing pres- ent on the transverse processes of the dorsal ^'ertebrae. Primitive iliac Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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